mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-10-31 13:20:59 +00:00
75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/TypeCasts.h>
|
|
#include <LibJS/Forward.h>
|
|
#include <LibJS/Runtime/ArrayBuffer.h>
|
|
#include <LibJS/Runtime/Error.h>
|
|
#include <LibJS/Runtime/GlobalObject.h>
|
|
#include <LibJS/Runtime/SharedArrayBufferConstructor.h>
|
|
#include <LibJS/Runtime/TypedArray.h>
|
|
|
|
namespace JS {
|
|
|
|
JS_DEFINE_ALLOCATOR(SharedArrayBufferConstructor);
|
|
|
|
SharedArrayBufferConstructor::SharedArrayBufferConstructor(Realm& realm)
|
|
: NativeFunction(realm.vm().names.SharedArrayBuffer.as_string(), realm.intrinsics().function_prototype())
|
|
{
|
|
}
|
|
|
|
void SharedArrayBufferConstructor::initialize(Realm& realm)
|
|
{
|
|
auto& vm = this->vm();
|
|
Base::initialize(realm);
|
|
|
|
// 25.2.4.1 SharedArrayBuffer.prototype, https://tc39.es/ecma262/#sec-sharedarraybuffer.prototype
|
|
define_direct_property(vm.names.prototype, realm.intrinsics().shared_array_buffer_prototype(), 0);
|
|
|
|
// 25.2.5.7 SharedArrayBuffer.prototype [ @@toStringTag ], https://tc39.es/ecma262/#sec-sharedarraybuffer.prototype.toString
|
|
define_native_accessor(realm, vm.well_known_symbol_species(), symbol_species_getter, {}, Attribute::Configurable);
|
|
|
|
define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
|
|
}
|
|
|
|
// 25.2.3.1 SharedArrayBuffer ( length [ , options ] ), https://tc39.es/ecma262/#sec-sharedarraybuffer-length
|
|
ThrowCompletionOr<Value> SharedArrayBufferConstructor::call()
|
|
{
|
|
auto& vm = this->vm();
|
|
|
|
// 1. If NewTarget is undefined, throw a TypeError exception.
|
|
return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, vm.names.SharedArrayBuffer);
|
|
}
|
|
|
|
// 25.2.3.1 SharedArrayBuffer ( length [ , options ] ), https://tc39.es/ecma262/#sec-sharedarraybuffer-length
|
|
ThrowCompletionOr<NonnullGCPtr<Object>> SharedArrayBufferConstructor::construct(FunctionObject& new_target)
|
|
{
|
|
auto& vm = this->vm();
|
|
|
|
// 2. Let byteLength be ? ToIndex(length).
|
|
auto byte_length_or_error = vm.argument(0).to_index(vm);
|
|
|
|
if (byte_length_or_error.is_error()) {
|
|
auto error = byte_length_or_error.release_error();
|
|
if (error.value()->is_object() && is<RangeError>(error.value()->as_object())) {
|
|
// Re-throw more specific RangeError
|
|
return vm.throw_completion<RangeError>(ErrorType::InvalidLength, "shared array buffer");
|
|
}
|
|
return error;
|
|
}
|
|
|
|
// 3. Return ? AllocateSharedArrayBuffer(NewTarget, byteLength).
|
|
return *TRY(allocate_shared_array_buffer(vm, new_target, byte_length_or_error.release_value()));
|
|
}
|
|
|
|
// 25.2.4.2 get SharedArrayBuffer [ @@species ], https://tc39.es/ecma262/#sec-sharedarraybuffer-@@species
|
|
JS_DEFINE_NATIVE_FUNCTION(SharedArrayBufferConstructor::symbol_species_getter)
|
|
{
|
|
// 1. Return the this value.
|
|
return vm.this_value();
|
|
}
|
|
|
|
}
|